Storage battery.



B. FORD.

STORAGE BATTERY.

APPL'xcATloN mED MAR. 2,

Patented May 16, 1916.

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BRUCE FORD, OF PHILADELPHIA, PENNSYLVANIA.

STORAGE BATTERY.

Specification of Letters Patent.

Patented May 16, 1916.

Application filed March 2, 1914. Serial No. 821,887.

To (/Zl i/'iom it may eoncern:

le it known that l. Bniicr. Foiio, a citizen ot' tlie United States, residiiig at Philadelphia, iii the county of Philadelphia and State of Pennsylvania, have invented certain new aiid useful lniproveinents in Storage Batteries, of which the following is a speei tieat ion.

The prineipal object of the present invention is to provide a combined stopper and vent whieh will ininiiiii/.e or prevent the eg'ress of liquid from the battery jar either by splashing or by being carried :is spray witli tlie gas or gases that are permitted to eseapo freely froin the interioi' of the jar through tlie stopper.

The invention will be ('iaimed at the eiid hei'eof but will be first desi'ribed iii connection with the. embodinients of it chosen forillustration in the aeoompziiiying drawings in which Figiii'e l. is a side view. prineipally iii sertion, of so much of a storage battery jar aiid its stopper as is neees'ssariV for zi deseriptioii of the inveutioii. Fig. 2, is a similar view of a portioii of the stopper or veiit showin;r the same to eiiibody a iiioditieation of tlie iiivention, and Fig. I. is a view similar lo Fig. l. illiisti'ating another inoditiciitioii.

leferi'ing to Figf. l. the stoppei' body l. has a hollow iiitei'ior ronstitiitiug an expausioii ('hain'bei' and the top of the stoppei' bodiv l. is provided with :i i'oiieavitv Il. The expaiision i'hamliei' is iii roininiuiieatioii with the eonravity by an (niening or port 4-, aiid the expaiision i'hainber is iii i'oinn'uuiieatioii with the iulerior of the jar by openings` oi' poi'ts 3 and (i. As shown iii Figi. '2, the construction is the same :is that illiisti'ated in lfig. 1, exeept that the stopper body is closed :it the bottoin aiid the poi'ts are arranged horizoiitally. 'lllie construction and iii'i'aiigemeiit showii in Fig. 3,' is substautiall)Y the same as in the other tigures except that several ports 4" anel 4', are eiiiployed for eoniieeting the expansion chamber with the eoneavity and exeept that the ports 5** and O, are ari'anged hoi'izontal'ly.

7, is a portion of the jar cover in which the stopper as a whole is detaehably titted.

In use gas entering the expansion chamber '2t ('arries with it liquid iii the form of vapor. spray or inist` and this liquid by reason of the restriction in velocity of the vapor ','ondenses or is deposited in the expansion chainber so that it does not pass to the ('onciivit-v 3. along with the gas; any liquid that does' reach the concavityflows bach' into tlie expansion chaniher and thence to the iiiterioi' of the jar. So far as Splashiiig is eoncei'ned thi` walls of the expansion eliainber aetingjr as baflles prev'jnt the escape of liquid froin the iiitei'ior of the jar, even if some liquid should splash into the expnnsion Chamber.

that l claini is:

1. A. stopper for battery ja rs consistihg of a body having a hollow intei'ior constituting an eiilai'ged expansion chamlier and having iii its top a eoncavity and provided with ports ciiiie 'ting the eoncavity and expansion i'hamxher and with other poi'ts iit different levels exteiiding from the expansion elianiber through the. wall of the stopper and adapted to coiiiiniiiiieate with the interior of a jar and of whieh some pass `gas while others pass' returning liquid,` wliei'eby the venture' operation is uniuterrupted.

'1. stopper for battery jai's coinprising a stopper body having a liollow unobstruc'ted iiitei'ior roiistitiiting an enlarged expansion rhamber and havingr a eonravitv in its top and an iniperforate bottoin and provided.

with ports froni the expansion rhaniber to the eoneavity and with other ports at different levels leading from the expansion Chamber through the stoppei' wall above the iinperforate bottoiii and wliei'eot soine pass gas and others siniultaneoiislv pass liquid, whereby the venting operation' is iiuinteri'iipted, substantially as described.

BRUCE FORD. 'itnesses L. H. FLAN-nniis, S. M. ieiioizis. 

